// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ov534 - ov7xxx gspca driver
*
* Copyright ( C ) 2008 Antonio Ospite < ospite @ studenti . unina . it >
* Copyright ( C ) 2008 Jim Paris < jim @ jtan . com >
* Copyright ( C ) 2009 Jean - Francois Moine http : //moinejf.free.fr
*
* Based on a prototype written by Mark Ferrell < majortrips @ gmail . com >
* USB protocol reverse engineered by Jim Paris < jim @ jtan . com >
* https : //jim.sh/svn/jim/devl/playstation/ps3/eye/test/
*
* PS3 Eye camera enhanced by Richard Kaswy http : //kaswy.free.fr
* PS3 Eye camera - brightness , contrast , awb , agc , aec controls
* added by Max Thrun < bear24rw @ gmail . com >
* PS3 Eye camera - FPS range extended by Joseph Howse
* < josephhowse @ nummist . com > https : //nummist.com
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#define MODULE_NAME "ov534"
#include "gspca.h"
#include <linux/fixp-arith.h>
#include <media/v4l2-ctrls.h>
#define OV534_REG_ADDRESS 0 xf1 /* sensor address */
#define OV534_REG_SUBADDR 0 xf2
#define OV534_REG_WRITE 0 xf3
#define OV534_REG_READ 0 xf4
#define OV534_REG_OPERATION 0 xf5
#define OV534_REG_STATUS 0 xf6
#define OV534_OP_WRITE_3 0 x37
#define OV534_OP_WRITE_2 0 x33
#define OV534_OP_READ_2 0 xf9
#define CTRL_TIMEOUT 500
#define DEFAULT_FRAME_RATE 30
MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>" );
MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver" );
MODULE_LICENSE("GPL" );
/* specific webcam descriptor */
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_ctrl *hue;
struct v4l2_ctrl *saturation;
struct v4l2_ctrl *brightness;
struct v4l2_ctrl *contrast;
struct { /* gain control cluster */
struct v4l2_ctrl *autogain;
struct v4l2_ctrl *gain;
};
struct v4l2_ctrl *autowhitebalance;
struct { /* exposure control cluster */
struct v4l2_ctrl *autoexposure;
struct v4l2_ctrl *exposure;
};
struct v4l2_ctrl *sharpness;
struct v4l2_ctrl *hflip;
struct v4l2_ctrl *vflip;
struct v4l2_ctrl *plfreq;
__u32 last_pts;
u16 last_fid;
u8 frame_rate;
u8 sensor;
};
enum sensors {
SENSOR_OV767x,
SENSOR_OV772x,
NSENSORS
};
static int sd_start(struct gspca_dev *gspca_dev);
static void sd_stopN(struct gspca_dev *gspca_dev);
static const struct v4l2_pix_format ov772x_mode[] = {
{320 , 240 , V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
.bytesperline = 320 * 2 ,
.sizeimage = 320 * 240 * 2 ,
.colorspace = V4L2_COLORSPACE_SRGB,
.priv = 1 },
{640 , 480 , V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
.bytesperline = 640 * 2 ,
.sizeimage = 640 * 480 * 2 ,
.colorspace = V4L2_COLORSPACE_SRGB,
.priv = 0 },
{320 , 240 , V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
.bytesperline = 320 ,
.sizeimage = 320 * 240 ,
.colorspace = V4L2_COLORSPACE_SRGB,
.priv = 1 },
{640 , 480 , V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
.bytesperline = 640 ,
.sizeimage = 640 * 480 ,
.colorspace = V4L2_COLORSPACE_SRGB,
.priv = 0 },
};
static const struct v4l2_pix_format ov767x_mode[] = {
{320 , 240 , V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 320 ,
.sizeimage = 320 * 240 * 3 / 8 + 590 ,
.colorspace = V4L2_COLORSPACE_JPEG},
{640 , 480 , V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 640 ,
.sizeimage = 640 * 480 * 3 / 8 + 590 ,
.colorspace = V4L2_COLORSPACE_JPEG},
};
static const u8 qvga_rates[] = {187 , 150 , 137 , 125 , 100 , 75 , 60 , 50 , 37 , 30 };
static const u8 vga_rates[] = {60 , 50 , 40 , 30 , 15 };
static const struct framerates ov772x_framerates[] = {
{ /* 320x240 */
.rates = qvga_rates,
.nrates = ARRAY_SIZE(qvga_rates),
},
{ /* 640x480 */
.rates = vga_rates,
.nrates = ARRAY_SIZE(vga_rates),
},
{ /* 320x240 SGBRG8 */
.rates = qvga_rates,
.nrates = ARRAY_SIZE(qvga_rates),
},
{ /* 640x480 SGBRG8 */
.rates = vga_rates,
.nrates = ARRAY_SIZE(vga_rates),
},
};
struct reg_array {
const u8 (*val)[2 ];
int len;
};
static const u8 bridge_init_767x[][2 ] = {
/* comments from the ms-win file apollo7670.set */
/* str1 */
{0 xf1, 0 x42},
{0 x88, 0 xf8},
{0 x89, 0 xff},
{0 x76, 0 x03},
{0 x92, 0 x03},
{0 x95, 0 x10},
{0 xe2, 0 x00},
{0 xe7, 0 x3e},
{0 x8d, 0 x1c},
{0 x8e, 0 x00},
{0 x8f, 0 x00},
{0 x1f, 0 x00},
{0 xc3, 0 xf9},
{0 x89, 0 xff},
{0 x88, 0 xf8},
{0 x76, 0 x03},
{0 x92, 0 x01},
{0 x93, 0 x18},
{0 x1c, 0 x00},
{0 x1d, 0 x48},
{0 x1d, 0 x00},
{0 x1d, 0 xff},
{0 x1d, 0 x02},
{0 x1d, 0 x58},
{0 x1d, 0 x00},
{0 x1c, 0 x0a},
{0 x1d, 0 x0a},
{0 x1d, 0 x0e},
{0 xc0, 0 x50}, /* HSize 640 */
{0 xc1, 0 x3c}, /* VSize 480 */
{0 x34, 0 x05}, /* enable Audio Suspend mode */
{0 xc2, 0 x0c}, /* Input YUV */
{0 xc3, 0 xf9}, /* enable PRE */
{0 x34, 0 x05}, /* enable Audio Suspend mode */
{0 xe7, 0 x2e}, /* this solves failure of "SuspendResumeTest" */
{0 x31, 0 xf9}, /* enable 1.8V Suspend */
{0 x35, 0 x02}, /* turn on JPEG */
{0 xd9, 0 x10},
{0 x25, 0 x42}, /* GPIO[8]:Input */
{0 x94, 0 x11}, /* If the default setting is loaded when
* system boots up, this flag is closed here */
};
static const u8 sensor_init_767x[][2 ] = {
{0 x12, 0 x80},
{0 x11, 0 x03},
{0 x3a, 0 x04},
{0 x12, 0 x00},
{0 x17, 0 x13},
{0 x18, 0 x01},
{0 x32, 0 xb6},
{0 x19, 0 x02},
{0 x1a, 0 x7a},
{0 x03, 0 x0a},
{0 x0c, 0 x00},
{0 x3e, 0 x00},
{0 x70, 0 x3a},
{0 x71, 0 x35},
{0 x72, 0 x11},
{0 x73, 0 xf0},
{0 xa2, 0 x02},
{0 x7a, 0 x2a}, /* set Gamma=1.6 below */
{0 x7b, 0 x12},
{0 x7c, 0 x1d},
{0 x7d, 0 x2d},
{0 x7e, 0 x45},
{0 x7f, 0 x50},
{0 x80, 0 x59},
{0 x81, 0 x62},
{0 x82, 0 x6b},
{0 x83, 0 x73},
{0 x84, 0 x7b},
{0 x85, 0 x8a},
{0 x86, 0 x98},
{0 x87, 0 xb2},
{0 x88, 0 xca},
{0 x89, 0 xe0},
{0 x13, 0 xe0},
{0 x00, 0 x00},
{0 x10, 0 x00},
{0 x0d, 0 x40},
{0 x14, 0 x38}, /* gain max 16x */
{0 xa5, 0 x05},
{0 xab, 0 x07},
{0 x24, 0 x95},
{0 x25, 0 x33},
{0 x26, 0 xe3},
{0 x9f, 0 x78},
{0 xa0, 0 x68},
{0 xa1, 0 x03},
{0 xa6, 0 xd8},
{0 xa7, 0 xd8},
{0 xa8, 0 xf0},
{0 xa9, 0 x90},
{0 xaa, 0 x94},
{0 x13, 0 xe5},
{0 x0e, 0 x61},
{0 x0f, 0 x4b},
{0 x16, 0 x02},
{0 x21, 0 x02},
{0 x22, 0 x91},
{0 x29, 0 x07},
{0 x33, 0 x0b},
{0 x35, 0 x0b},
{0 x37, 0 x1d},
{0 x38, 0 x71},
{0 x39, 0 x2a},
{0 x3c, 0 x78},
{0 x4d, 0 x40},
{0 x4e, 0 x20},
{0 x69, 0 x00},
{0 x6b, 0 x4a},
{0 x74, 0 x10},
{0 x8d, 0 x4f},
{0 x8e, 0 x00},
{0 x8f, 0 x00},
{0 x90, 0 x00},
{0 x91, 0 x00},
{0 x96, 0 x00},
{0 x9a, 0 x80},
{0 xb0, 0 x84},
{0 xb1, 0 x0c},
{0 xb2, 0 x0e},
{0 xb3, 0 x82},
{0 xb8, 0 x0a},
{0 x43, 0 x0a},
{0 x44, 0 xf0},
{0 x45, 0 x34},
{0 x46, 0 x58},
{0 x47, 0 x28},
{0 x48, 0 x3a},
{0 x59, 0 x88},
{0 x5a, 0 x88},
{0 x5b, 0 x44},
{0 x5c, 0 x67},
{0 x5d, 0 x49},
{0 x5e, 0 x0e},
{0 x6c, 0 x0a},
{0 x6d, 0 x55},
{0 x6e, 0 x11},
{0 x6f, 0 x9f},
{0 x6a, 0 x40},
{0 x01, 0 x40},
{0 x02, 0 x40},
{0 x13, 0 xe7},
{0 x4f, 0 x80},
{0 x50, 0 x80},
{0 x51, 0 x00},
{0 x52, 0 x22},
{0 x53, 0 x5e},
{0 x54, 0 x80},
{0 x58, 0 x9e},
{0 x41, 0 x08},
{0 x3f, 0 x00},
{0 x75, 0 x04},
{0 x76, 0 xe1},
{0 x4c, 0 x00},
{0 x77, 0 x01},
{0 x3d, 0 xc2},
{0 x4b, 0 x09},
{0 xc9, 0 x60},
{0 x41, 0 x38}, /* jfm: auto sharpness + auto de-noise */
{0 x56, 0 x40},
{0 x34, 0 x11},
{0 x3b, 0 xc2},
{0 xa4, 0 x8a}, /* Night mode trigger point */
{0 x96, 0 x00},
{0 x97, 0 x30},
{0 x98, 0 x20},
{0 x99, 0 x20},
{0 x9a, 0 x84},
{0 x9b, 0 x29},
{0 x9c, 0 x03},
{0 x9d, 0 x4c},
{0 x9e, 0 x3f},
{0 x78, 0 x04},
{0 x79, 0 x01},
{0 xc8, 0 xf0},
{0 x79, 0 x0f},
{0 xc8, 0 x00},
{0 x79, 0 x10},
{0 xc8, 0 x7e},
{0 x79, 0 x0a},
{0 xc8, 0 x80},
{0 x79, 0 x0b},
{0 xc8, 0 x01},
{0 x79, 0 x0c},
{0 xc8, 0 x0f},
{0 x79, 0 x0d},
{0 xc8, 0 x20},
{0 x79, 0 x09},
{0 xc8, 0 x80},
{0 x79, 0 x02},
{0 xc8, 0 xc0},
{0 x79, 0 x03},
{0 xc8, 0 x20},
{0 x79, 0 x26},
};
static const u8 bridge_start_vga_767x[][2 ] = {
/* str59 JPG */
{0 x94, 0 xaa},
{0 xf1, 0 x42},
{0 xe5, 0 x04},
{0 xc0, 0 x50},
{0 xc1, 0 x3c},
{0 xc2, 0 x0c},
{0 x35, 0 x02}, /* turn on JPEG */
{0 xd9, 0 x10},
{0 xda, 0 x00}, /* for higher clock rate(30fps) */
{0 x34, 0 x05}, /* enable Audio Suspend mode */
{0 xc3, 0 xf9}, /* enable PRE */
{0 x8c, 0 x00}, /* CIF VSize LSB[2:0] */
{0 x8d, 0 x1c}, /* output YUV */
/* {0x34, 0x05}, * enable Audio Suspend mode (?) */
{0 x50, 0 x00}, /* H/V divider=0 */
{0 x51, 0 xa0}, /* input H=640/4 */
{0 x52, 0 x3c}, /* input V=480/4 */
{0 x53, 0 x00}, /* offset X=0 */
{0 x54, 0 x00}, /* offset Y=0 */
{0 x55, 0 x00}, /* H/V size[8]=0 */
{0 x57, 0 x00}, /* H-size[9]=0 */
{0 x5c, 0 x00}, /* output size[9:8]=0 */
{0 x5a, 0 xa0}, /* output H=640/4 */
{0 x5b, 0 x78}, /* output V=480/4 */
{0 x1c, 0 x0a},
{0 x1d, 0 x0a},
{0 x94, 0 x11},
};
static const u8 sensor_start_vga_767x[][2 ] = {
{0 x11, 0 x01},
{0 x1e, 0 x04},
{0 x19, 0 x02},
{0 x1a, 0 x7a},
};
static const u8 bridge_start_qvga_767x[][2 ] = {
/* str86 JPG */
{0 x94, 0 xaa},
{0 xf1, 0 x42},
{0 xe5, 0 x04},
{0 xc0, 0 x80},
{0 xc1, 0 x60},
{0 xc2, 0 x0c},
{0 x35, 0 x02}, /* turn on JPEG */
{0 xd9, 0 x10},
{0 xc0, 0 x50}, /* CIF HSize 640 */
{0 xc1, 0 x3c}, /* CIF VSize 480 */
{0 x8c, 0 x00}, /* CIF VSize LSB[2:0] */
{0 x8d, 0 x1c}, /* output YUV */
{0 x34, 0 x05}, /* enable Audio Suspend mode */
{0 xc2, 0 x4c}, /* output YUV and Enable DCW */
{0 xc3, 0 xf9}, /* enable PRE */
{0 x1c, 0 x00}, /* indirect addressing */
{0 x1d, 0 x48}, /* output YUV422 */
{0 x50, 0 x89}, /* H/V divider=/2; plus DCW AVG */
{0 x51, 0 xa0}, /* DCW input H=640/4 */
{0 x52, 0 x78}, /* DCW input V=480/4 */
{0 x53, 0 x00}, /* offset X=0 */
{0 x54, 0 x00}, /* offset Y=0 */
{0 x55, 0 x00}, /* H/V size[8]=0 */
{0 x57, 0 x00}, /* H-size[9]=0 */
{0 x5c, 0 x00}, /* DCW output size[9:8]=0 */
{0 x5a, 0 x50}, /* DCW output H=320/4 */
{0 x5b, 0 x3c}, /* DCW output V=240/4 */
{0 x1c, 0 x0a},
{0 x1d, 0 x0a},
{0 x94, 0 x11},
};
static const u8 sensor_start_qvga_767x[][2 ] = {
{0 x11, 0 x01},
{0 x1e, 0 x04},
{0 x19, 0 x02},
{0 x1a, 0 x7a},
};
static const u8 bridge_init_772x[][2 ] = {
{ 0 x88, 0 xf8 },
{ 0 x89, 0 xff },
{ 0 x76, 0 x03 },
{ 0 x92, 0 x01 },
{ 0 x93, 0 x18 },
{ 0 x94, 0 x10 },
{ 0 x95, 0 x10 },
{ 0 xe2, 0 x00 },
{ 0 xe7, 0 x3e },
{ 0 x96, 0 x00 },
{ 0 x97, 0 x20 },
{ 0 x97, 0 x20 },
{ 0 x97, 0 x20 },
{ 0 x97, 0 x0a },
{ 0 x97, 0 x3f },
{ 0 x97, 0 x4a },
{ 0 x97, 0 x20 },
{ 0 x97, 0 x15 },
{ 0 x97, 0 x0b },
{ 0 x8e, 0 x40 },
{ 0 x1f, 0 x81 },
{ 0 x34, 0 x05 },
{ 0 xe3, 0 x04 },
{ 0 x89, 0 x00 },
{ 0 x76, 0 x00 },
{ 0 xe7, 0 x2e },
{ 0 x31, 0 xf9 },
{ 0 x25, 0 x42 },
{ 0 x21, 0 xf0 },
{ 0 x1c, 0 x0a },
{ 0 x1d, 0 x08 }, /* turn on UVC header */
{ 0 x1d, 0 x0e }, /* .. */
};
static const u8 sensor_init_772x[][2 ] = {
{ 0 x12, 0 x80 },
{ 0 x11, 0 x01 },
/*fixme: better have a delay?*/
{ 0 x11, 0 x01 },
{ 0 x11, 0 x01 },
{ 0 x11, 0 x01 },
{ 0 x11, 0 x01 },
{ 0 x11, 0 x01 },
{ 0 x11, 0 x01 },
{ 0 x11, 0 x01 },
{ 0 x11, 0 x01 },
{ 0 x11, 0 x01 },
{ 0 x11, 0 x01 },
{ 0 x3d, 0 x03 },
{ 0 x17, 0 x26 },
{ 0 x18, 0 xa0 },
{ 0 x19, 0 x07 },
{ 0 x1a, 0 xf0 },
{ 0 x32, 0 x00 },
{ 0 x29, 0 xa0 },
{ 0 x2c, 0 xf0 },
{ 0 x65, 0 x20 },
{ 0 x11, 0 x01 },
{ 0 x42, 0 x7f },
{ 0 x63, 0 xaa }, /* AWB - was e0 */
{ 0 x64, 0 xff },
{ 0 x66, 0 x00 },
{ 0 x13, 0 xf0 }, /* com8 */
{ 0 x0d, 0 x41 },
{ 0 x0f, 0 xc5 },
{ 0 x14, 0 x11 },
{ 0 x22, 0 x7f },
{ 0 x23, 0 x03 },
{ 0 x24, 0 x40 },
{ 0 x25, 0 x30 },
{ 0 x26, 0 xa1 },
{ 0 x2a, 0 x00 },
{ 0 x2b, 0 x00 },
{ 0 x6b, 0 xaa },
{ 0 x13, 0 xff }, /* AWB */
{ 0 x90, 0 x05 },
{ 0 x91, 0 x01 },
{ 0 x92, 0 x03 },
{ 0 x93, 0 x00 },
{ 0 x94, 0 x60 },
{ 0 x95, 0 x3c },
{ 0 x96, 0 x24 },
{ 0 x97, 0 x1e },
{ 0 x98, 0 x62 },
{ 0 x99, 0 x80 },
{ 0 x9a, 0 x1e },
{ 0 x9b, 0 x08 },
{ 0 x9c, 0 x20 },
{ 0 x9e, 0 x81 },
{ 0 xa6, 0 x07 },
{ 0 x7e, 0 x0c },
{ 0 x7f, 0 x16 },
{ 0 x80, 0 x2a },
{ 0 x81, 0 x4e },
{ 0 x82, 0 x61 },
{ 0 x83, 0 x6f },
{ 0 x84, 0 x7b },
{ 0 x85, 0 x86 },
{ 0 x86, 0 x8e },
{ 0 x87, 0 x97 },
{ 0 x88, 0 xa4 },
{ 0 x89, 0 xaf },
{ 0 x8a, 0 xc5 },
{ 0 x8b, 0 xd7 },
{ 0 x8c, 0 xe8 },
{ 0 x8d, 0 x20 },
{ 0 x2b, 0 x00 },
{ 0 x22, 0 x7f },
{ 0 x23, 0 x03 },
{ 0 x11, 0 x01 },
{ 0 x64, 0 xff },
{ 0 x0d, 0 x41 },
{ 0 x14, 0 x41 },
{ 0 x0e, 0 xcd },
{ 0 xac, 0 xbf },
{ 0 x8e, 0 x00 }, /* De-noise threshold */
};
static const u8 bridge_start_vga_yuyv_772x[][2 ] = {
{0 x88, 0 x00},
{0 x1c, 0 x00},
{0 x1d, 0 x40},
{0 x1d, 0 x02},
{0 x1d, 0 x00},
{0 x1d, 0 x02},
{0 x1d, 0 x58},
{0 x1d, 0 x00},
{0 x8d, 0 x1c},
{0 x8e, 0 x80},
{0 xc0, 0 x50},
{0 xc1, 0 x3c},
{0 xc2, 0 x0c},
{0 xc3, 0 x69},
};
static const u8 sensor_start_vga_yuyv_772x[][2 ] = {
{0 x12, 0 x00},
{0 x17, 0 x26},
{0 x18, 0 xa0},
{0 x19, 0 x07},
{0 x1a, 0 xf0},
{0 x29, 0 xa0},
{0 x2c, 0 xf0},
{0 x65, 0 x20},
{0 x67, 0 x00},
};
static const u8 bridge_start_qvga_yuyv_772x[][2 ] = {
{0 x88, 0 x00},
{0 x1c, 0 x00},
{0 x1d, 0 x40},
{0 x1d, 0 x02},
{0 x1d, 0 x00},
{0 x1d, 0 x01},
{0 x1d, 0 x4b},
{0 x1d, 0 x00},
{0 x8d, 0 x1c},
{0 x8e, 0 x80},
{0 xc0, 0 x28},
{0 xc1, 0 x1e},
{0 xc2, 0 x0c},
{0 xc3, 0 x69},
};
static const u8 sensor_start_qvga_yuyv_772x[][2 ] = {
{0 x12, 0 x40},
{0 x17, 0 x3f},
{0 x18, 0 x50},
{0 x19, 0 x03},
{0 x1a, 0 x78},
{0 x29, 0 x50},
{0 x2c, 0 x78},
{0 x65, 0 x2f},
{0 x67, 0 x00},
};
static const u8 bridge_start_vga_gbrg_772x[][2 ] = {
{0 x88, 0 x08},
{0 x1c, 0 x00},
{0 x1d, 0 x00},
{0 x1d, 0 x02},
{0 x1d, 0 x00},
{0 x1d, 0 x01},
{0 x1d, 0 x2c},
{0 x1d, 0 x00},
{0 x8d, 0 x00},
{0 x8e, 0 x00},
{0 xc0, 0 x50},
{0 xc1, 0 x3c},
{0 xc2, 0 x01},
{0 xc3, 0 x01},
};
static const u8 sensor_start_vga_gbrg_772x[][2 ] = {
{0 x12, 0 x01},
{0 x17, 0 x26},
{0 x18, 0 xa0},
{0 x19, 0 x07},
{0 x1a, 0 xf0},
{0 x29, 0 xa0},
{0 x2c, 0 xf0},
{0 x65, 0 x20},
{0 x67, 0 x02},
};
static const u8 bridge_start_qvga_gbrg_772x[][2 ] = {
{0 x88, 0 x08},
{0 x1c, 0 x00},
{0 x1d, 0 x00},
{0 x1d, 0 x02},
{0 x1d, 0 x00},
{0 x1d, 0 x00},
{0 x1d, 0 x4b},
{0 x1d, 0 x00},
{0 x8d, 0 x00},
{0 x8e, 0 x00},
{0 xc0, 0 x28},
{0 xc1, 0 x1e},
{0 xc2, 0 x01},
{0 xc3, 0 x01},
};
static const u8 sensor_start_qvga_gbrg_772x[][2 ] = {
{0 x12, 0 x41},
{0 x17, 0 x3f},
{0 x18, 0 x50},
{0 x19, 0 x03},
{0 x1a, 0 x78},
{0 x29, 0 x50},
{0 x2c, 0 x78},
{0 x65, 0 x2f},
{0 x67, 0 x02},
};
static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
{
struct usb_device *udev = gspca_dev->dev;
int ret;
if (gspca_dev->usb_err < 0 )
return ;
gspca_dbg(gspca_dev, D_USBO, "SET 01 0000 %04x %02x\n" , reg, val);
gspca_dev->usb_buf[0 ] = val;
ret = usb_control_msg(udev,
usb_sndctrlpipe(udev, 0 ),
0 x01,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0 x00, reg, gspca_dev->usb_buf, 1 , CTRL_TIMEOUT);
if (ret < 0 ) {
pr_err("write failed %d\n" , ret);
gspca_dev->usb_err = ret;
}
}
static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
{
struct usb_device *udev = gspca_dev->dev;
int ret;
if (gspca_dev->usb_err < 0 )
return 0 ;
ret = usb_control_msg(udev,
usb_rcvctrlpipe(udev, 0 ),
0 x01,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0 x00, reg, gspca_dev->usb_buf, 1 , CTRL_TIMEOUT);
gspca_dbg(gspca_dev, D_USBI, "GET 01 0000 %04x %02x\n" ,
reg, gspca_dev->usb_buf[0 ]);
if (ret < 0 ) {
pr_err("read failed %d\n" , ret);
gspca_dev->usb_err = ret;
/*
* Make sure the result is zeroed to avoid uninitialized
* values .
*/
gspca_dev->usb_buf[0 ] = 0 ;
}
return gspca_dev->usb_buf[0 ];
}
/* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
* (direction and output)? */
static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
{
u8 data;
gspca_dbg(gspca_dev, D_CONF, "led status: %d\n" , status);
data = ov534_reg_read(gspca_dev, 0 x21);
data |= 0 x80;
ov534_reg_write(gspca_dev, 0 x21, data);
data = ov534_reg_read(gspca_dev, 0 x23);
if (status)
data |= 0 x80;
else
data &= ~0 x80;
ov534_reg_write(gspca_dev, 0 x23, data);
if (!status) {
data = ov534_reg_read(gspca_dev, 0 x21);
data &= ~0 x80;
ov534_reg_write(gspca_dev, 0 x21, data);
}
}
static int sccb_check_status(struct gspca_dev *gspca_dev)
{
u8 data;
int i;
for (i = 0 ; i < 5 ; i++) {
usleep_range(10000 , 20000 );
data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
switch (data) {
case 0 x00:
return 1 ;
case 0 x04:
return 0 ;
case 0 x03:
break ;
default :
gspca_err(gspca_dev, "sccb status 0x%02x, attempt %d/5\n" ,
data, i + 1 );
}
}
return 0 ;
}
static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
{
gspca_dbg(gspca_dev, D_USBO, "sccb write: %02x %02x\n" , reg, val);
ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
if (!sccb_check_status(gspca_dev)) {
pr_err("sccb_reg_write failed\n" );
gspca_dev->usb_err = -EIO;
}
}
static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
{
ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
if (!sccb_check_status(gspca_dev))
pr_err("sccb_reg_read failed 1\n" );
ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
if (!sccb_check_status(gspca_dev))
pr_err("sccb_reg_read failed 2\n" );
return ov534_reg_read(gspca_dev, OV534_REG_READ);
}
/* output a bridge sequence (reg - val) */
static void reg_w_array(struct gspca_dev *gspca_dev,
const u8 (*data)[2 ], int len)
{
while (--len >= 0 ) {
ov534_reg_write(gspca_dev, (*data)[0 ], (*data)[1 ]);
data++;
}
}
/* output a sensor sequence (reg - val) */
static void sccb_w_array(struct gspca_dev *gspca_dev,
const u8 (*data)[2 ], int len)
{
while (--len >= 0 ) {
if ((*data)[0 ] != 0 xff) {
sccb_reg_write(gspca_dev, (*data)[0 ], (*data)[1 ]);
} else {
sccb_reg_read(gspca_dev, (*data)[1 ]);
sccb_reg_write(gspca_dev, 0 xff, 0 x00);
}
data++;
}
}
/* ov772x specific controls */
static void set_frame_rate(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int i;
struct rate_s {
u8 fps;
u8 r11;
u8 r0d;
u8 re5;
};
const struct rate_s *r;
static const struct rate_s rate_0[] = { /* 640x480 */
{60 , 0 x01, 0 xc1, 0 x04},
{50 , 0 x01, 0 x41, 0 x02},
{40 , 0 x02, 0 xc1, 0 x04},
{30 , 0 x04, 0 x81, 0 x02},
{15 , 0 x03, 0 x41, 0 x04},
};
static const struct rate_s rate_1[] = { /* 320x240 */
/* {205, 0x01, 0xc1, 0x02}, * 205 FPS: video is partly corrupt */
{187 , 0 x01, 0 x81, 0 x02}, /* 187 FPS or below: video is valid */
{150 , 0 x01, 0 xc1, 0 x04},
{137 , 0 x02, 0 xc1, 0 x02},
{125 , 0 x02, 0 x81, 0 x02},
{100 , 0 x02, 0 xc1, 0 x04},
{75 , 0 x03, 0 xc1, 0 x04},
{60 , 0 x04, 0 xc1, 0 x04},
{50 , 0 x02, 0 x41, 0 x04},
{37 , 0 x03, 0 x41, 0 x04},
{30 , 0 x04, 0 x41, 0 x04},
};
if (sd->sensor != SENSOR_OV772x)
return ;
if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0 ) {
r = rate_0;
i = ARRAY_SIZE(rate_0);
} else {
r = rate_1;
i = ARRAY_SIZE(rate_1);
}
while (--i >= 0 ) {
if (sd->frame_rate >= r->fps)
break ;
r++;
}
sccb_reg_write(gspca_dev, 0 x11, r->r11);
sccb_reg_write(gspca_dev, 0 x0d, r->r0d);
ov534_reg_write(gspca_dev, 0 xe5, r->re5);
gspca_dbg(gspca_dev, D_PROBE, "frame_rate: %d\n" , r->fps);
}
static void sethue(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_OV767x) {
/* TBD */
} else {
s16 huesin;
s16 huecos;
/* According to the datasheet the registers expect HUESIN and
* HUECOS to be the result of the trigonometric functions ,
* scaled by 0 x80 .
*
* The 0 x7fff here represents the maximum absolute value
* returned byt fixp_sin and fixp_cos , so the scaling will
* consider the result like in the interval [ - 1 . 0 , 1 . 0 ] .
*/
huesin = fixp_sin16(val) * 0 x80 / 0 x7fff;
huecos = fixp_cos16(val) * 0 x80 / 0 x7fff;
if (huesin < 0 ) {
sccb_reg_write(gspca_dev, 0 xab,
sccb_reg_read(gspca_dev, 0 xab) | 0 x2);
huesin = -huesin;
} else {
sccb_reg_write(gspca_dev, 0 xab,
sccb_reg_read(gspca_dev, 0 xab) & ~0 x2);
}
sccb_reg_write(gspca_dev, 0 xa9, (u8)huecos);
sccb_reg_write(gspca_dev, 0 xaa, (u8)huesin);
}
}
static void setsaturation(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_OV767x) {
int i;
static u8 color_tb[][6 ] = {
{0 x42, 0 x42, 0 x00, 0 x11, 0 x30, 0 x41},
{0 x52, 0 x52, 0 x00, 0 x16, 0 x3c, 0 x52},
{0 x66, 0 x66, 0 x00, 0 x1b, 0 x4b, 0 x66},
{0 x80, 0 x80, 0 x00, 0 x22, 0 x5e, 0 x80},
{0 x9a, 0 x9a, 0 x00, 0 x29, 0 x71, 0 x9a},
{0 xb8, 0 xb8, 0 x00, 0 x31, 0 x87, 0 xb8},
{0 xdd, 0 xdd, 0 x00, 0 x3b, 0 xa2, 0 xdd},
};
for (i = 0 ; i < ARRAY_SIZE(color_tb[0 ]); i++)
sccb_reg_write(gspca_dev, 0 x4f + i, color_tb[val][i]);
} else {
sccb_reg_write(gspca_dev, 0 xa7, val); /* U saturation */
sccb_reg_write(gspca_dev, 0 xa8, val); /* V saturation */
}
}
static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_OV767x) {
if (val < 0 )
val = 0 x80 - val;
sccb_reg_write(gspca_dev, 0 x55, val); /* bright */
} else {
sccb_reg_write(gspca_dev, 0 x9b, val);
}
}
static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_OV767x)
sccb_reg_write(gspca_dev, 0 x56, val); /* contras */
else
sccb_reg_write(gspca_dev, 0 x9c, val);
}
static void setgain(struct gspca_dev *gspca_dev, s32 val)
{
switch (val & 0 x30) {
case 0 x00:
val &= 0 x0f;
break ;
case 0 x10:
val &= 0 x0f;
val |= 0 x30;
break ;
case 0 x20:
val &= 0 x0f;
val |= 0 x70;
break ;
default :
/* case 0x30: */
val &= 0 x0f;
val |= 0 xf0;
break ;
}
sccb_reg_write(gspca_dev, 0 x00, val);
}
static s32 getgain(struct gspca_dev *gspca_dev)
{
return sccb_reg_read(gspca_dev, 0 x00);
}
static void setexposure(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_OV767x) {
/* set only aec[9:2] */
sccb_reg_write(gspca_dev, 0 x10, val); /* aech */
} else {
/* 'val' is one byte and represents half of the exposure value
* we are going to set into registers , a two bytes value :
*
* MSB : ( ( u16 ) val < < 1 ) > > 8 = = val > > 7
* LSB : ( ( u16 ) val < < 1 ) & 0 xff = = val < < 1
*/
sccb_reg_write(gspca_dev, 0 x08, val >> 7 );
sccb_reg_write(gspca_dev, 0 x10, val << 1 );
}
}
static s32 getexposure(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
if (sd->sensor == SENSOR_OV767x) {
/* get only aec[9:2] */
return sccb_reg_read(gspca_dev, 0 x10); /* aech */
} else {
u8 hi = sccb_reg_read(gspca_dev, 0 x08);
u8 lo = sccb_reg_read(gspca_dev, 0 x10);
return (hi << 8 | lo) >> 1 ;
}
}
static void setagc(struct gspca_dev *gspca_dev, s32 val)
{
if (val) {
sccb_reg_write(gspca_dev, 0 x13,
sccb_reg_read(gspca_dev, 0 x13) | 0 x04);
sccb_reg_write(gspca_dev, 0 x64,
sccb_reg_read(gspca_dev, 0 x64) | 0 x03);
} else {
sccb_reg_write(gspca_dev, 0 x13,
sccb_reg_read(gspca_dev, 0 x13) & ~0 x04);
sccb_reg_write(gspca_dev, 0 x64,
sccb_reg_read(gspca_dev, 0 x64) & ~0 x03);
}
}
static void setawb(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
if (val) {
sccb_reg_write(gspca_dev, 0 x13,
sccb_reg_read(gspca_dev, 0 x13) | 0 x02);
if (sd->sensor == SENSOR_OV772x)
sccb_reg_write(gspca_dev, 0 x63,
sccb_reg_read(gspca_dev, 0 x63) | 0 xc0);
} else {
sccb_reg_write(gspca_dev, 0 x13,
sccb_reg_read(gspca_dev, 0 x13) & ~0 x02);
if (sd->sensor == SENSOR_OV772x)
sccb_reg_write(gspca_dev, 0 x63,
sccb_reg_read(gspca_dev, 0 x63) & ~0 xc0);
}
}
static void setaec(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 data;
data = sd->sensor == SENSOR_OV767x ?
0 x05 : /* agc + aec */
0 x01; /* agc */
switch (val) {
case V4L2_EXPOSURE_AUTO:
sccb_reg_write(gspca_dev, 0 x13,
sccb_reg_read(gspca_dev, 0 x13) | data);
break ;
case V4L2_EXPOSURE_MANUAL:
sccb_reg_write(gspca_dev, 0 x13,
sccb_reg_read(gspca_dev, 0 x13) & ~data);
break ;
}
}
static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
{
sccb_reg_write(gspca_dev, 0 x91, val); /* Auto de-noise threshold */
sccb_reg_write(gspca_dev, 0 x8e, val); /* De-noise threshold */
}
static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 val;
if (sd->sensor == SENSOR_OV767x) {
val = sccb_reg_read(gspca_dev, 0 x1e); /* mvfp */
val &= ~0 x30;
if (hflip)
val |= 0 x20;
if (vflip)
val |= 0 x10;
sccb_reg_write(gspca_dev, 0 x1e, val);
} else {
val = sccb_reg_read(gspca_dev, 0 x0c);
val &= ~0 xc0;
if (hflip == 0 )
val |= 0 x40;
if (vflip == 0 )
val |= 0 x80;
sccb_reg_write(gspca_dev, 0 x0c, val);
}
}
static void setlightfreq(struct gspca_dev *gspca_dev, s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
val = val ? 0 x9e : 0 x00;
if (sd->sensor == SENSOR_OV767x) {
sccb_reg_write(gspca_dev, 0 x2a, 0 x00);
if (val)
val = 0 x9d; /* insert dummy to 25fps for 50Hz */
}
sccb_reg_write(gspca_dev, 0 x2b, val);
}
/* this function is called at probe time */
static int sd_config(struct gspca_dev *gspca_dev,
const struct usb_device_id *id)
{
struct sd *sd = (struct sd *) gspca_dev;
struct cam *cam;
cam = &gspca_dev->cam;
cam->cam_mode = ov772x_mode;
cam->nmodes = ARRAY_SIZE(ov772x_mode);
sd->frame_rate = DEFAULT_FRAME_RATE;
return 0 ;
}
static int ov534_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
struct gspca_dev *gspca_dev = &sd->gspca_dev;
switch (ctrl->id) {
case V4L2_CID_AUTOGAIN:
gspca_dev->usb_err = 0 ;
if (ctrl->val && sd->gain && gspca_dev->streaming)
sd->gain->val = getgain(gspca_dev);
return gspca_dev->usb_err;
case V4L2_CID_EXPOSURE_AUTO:
gspca_dev->usb_err = 0 ;
if (ctrl->val == V4L2_EXPOSURE_AUTO && sd->exposure &&
gspca_dev->streaming)
sd->exposure->val = getexposure(gspca_dev);
return gspca_dev->usb_err;
}
return -EINVAL;
}
static int ov534_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct sd *sd = container_of(ctrl->handler, struct sd, ctrl_handler);
struct gspca_dev *gspca_dev = &sd->gspca_dev;
gspca_dev->usb_err = 0 ;
if (!gspca_dev->streaming)
return 0 ;
switch (ctrl->id) {
case V4L2_CID_HUE:
sethue(gspca_dev, ctrl->val);
break ;
case V4L2_CID_SATURATION:
setsaturation(gspca_dev, ctrl->val);
break ;
case V4L2_CID_BRIGHTNESS:
setbrightness(gspca_dev, ctrl->val);
break ;
case V4L2_CID_CONTRAST:
setcontrast(gspca_dev, ctrl->val);
break ;
case V4L2_CID_AUTOGAIN:
/* case V4L2_CID_GAIN: */
setagc(gspca_dev, ctrl->val);
if (!gspca_dev->usb_err && !ctrl->val && sd->gain)
setgain(gspca_dev, sd->gain->val);
break ;
case V4L2_CID_AUTO_WHITE_BALANCE:
setawb(gspca_dev, ctrl->val);
break ;
case V4L2_CID_EXPOSURE_AUTO:
/* case V4L2_CID_EXPOSURE: */
setaec(gspca_dev, ctrl->val);
if (!gspca_dev->usb_err && ctrl->val == V4L2_EXPOSURE_MANUAL &&
sd->exposure)
setexposure(gspca_dev, sd->exposure->val);
break ;
case V4L2_CID_SHARPNESS:
setsharpness(gspca_dev, ctrl->val);
break ;
case V4L2_CID_HFLIP:
sethvflip(gspca_dev, ctrl->val, sd->vflip->val);
break ;
case V4L2_CID_VFLIP:
sethvflip(gspca_dev, sd->hflip->val, ctrl->val);
break ;
case V4L2_CID_POWER_LINE_FREQUENCY:
setlightfreq(gspca_dev, ctrl->val);
break ;
}
return gspca_dev->usb_err;
}
static const struct v4l2_ctrl_ops ov534_ctrl_ops = {
.g_volatile_ctrl = ov534_g_volatile_ctrl,
.s_ctrl = ov534_s_ctrl,
};
static int sd_init_controls(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
struct v4l2_ctrl_handler *hdl = &sd->ctrl_handler;
/* parameters with different values between the supported sensors */
int saturation_min;
int saturation_max;
int saturation_def;
int brightness_min;
int brightness_max;
int brightness_def;
int contrast_max;
int contrast_def;
int exposure_min;
int exposure_max;
int exposure_def;
int hflip_def;
if (sd->sensor == SENSOR_OV767x) {
saturation_min = 0 ;
saturation_max = 6 ;
saturation_def = 3 ;
brightness_min = -127 ;
brightness_max = 127 ;
brightness_def = 0 ;
contrast_max = 0 x80;
contrast_def = 0 x40;
exposure_min = 0 x08;
exposure_max = 0 x60;
exposure_def = 0 x13;
hflip_def = 1 ;
} else {
saturation_min = 0 ;
saturation_max = 255 ;
saturation_def = 64 ;
brightness_min = 0 ;
brightness_max = 255 ;
brightness_def = 0 ;
contrast_max = 255 ;
contrast_def = 32 ;
exposure_min = 0 ;
exposure_max = 255 ;
exposure_def = 120 ;
hflip_def = 0 ;
}
gspca_dev->vdev.ctrl_handler = hdl;
v4l2_ctrl_handler_init(hdl, 13 );
if (sd->sensor == SENSOR_OV772x)
sd->hue = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_HUE, -90 , 90 , 1 , 0 );
sd->saturation = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_SATURATION, saturation_min, saturation_max, 1 ,
saturation_def);
sd->brightness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_BRIGHTNESS, brightness_min, brightness_max, 1 ,
brightness_def);
sd->contrast = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_CONTRAST, 0 , contrast_max, 1 , contrast_def);
if (sd->sensor == SENSOR_OV772x) {
sd->autogain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_AUTOGAIN, 0 , 1 , 1 , 1 );
sd->gain = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_GAIN, 0 , 63 , 1 , 20 );
}
sd->autoexposure = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
V4L2_CID_EXPOSURE_AUTO,
V4L2_EXPOSURE_MANUAL, 0 ,
V4L2_EXPOSURE_AUTO);
sd->exposure = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_EXPOSURE, exposure_min, exposure_max, 1 ,
exposure_def);
sd->autowhitebalance = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_AUTO_WHITE_BALANCE, 0 , 1 , 1 , 1 );
if (sd->sensor == SENSOR_OV772x)
sd->sharpness = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_SHARPNESS, 0 , 63 , 1 , 0 );
sd->hflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_HFLIP, 0 , 1 , 1 , hflip_def);
sd->vflip = v4l2_ctrl_new_std(hdl, &ov534_ctrl_ops,
V4L2_CID_VFLIP, 0 , 1 , 1 , 0 );
sd->plfreq = v4l2_ctrl_new_std_menu(hdl, &ov534_ctrl_ops,
V4L2_CID_POWER_LINE_FREQUENCY,
V4L2_CID_POWER_LINE_FREQUENCY_50HZ, 0 ,
V4L2_CID_POWER_LINE_FREQUENCY_DISABLED);
if (hdl->error) {
pr_err("Could not initialize controls\n" );
return hdl->error;
}
if (sd->sensor == SENSOR_OV772x)
v4l2_ctrl_auto_cluster(2 , &sd->autogain, 0 , true );
v4l2_ctrl_auto_cluster(2 , &sd->autoexposure, V4L2_EXPOSURE_MANUAL,
true );
return 0 ;
}
/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
u16 sensor_id;
static const struct reg_array bridge_init[NSENSORS] = {
[SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
[SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
};
static const struct reg_array sensor_init[NSENSORS] = {
[SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
[SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
};
/* reset bridge */
ov534_reg_write(gspca_dev, 0 xe7, 0 x3a);
ov534_reg_write(gspca_dev, 0 xe0, 0 x08);
msleep(100 );
/* initialize the sensor address */
ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0 x42);
/* reset sensor */
sccb_reg_write(gspca_dev, 0 x12, 0 x80);
usleep_range(10000 , 20000 );
/* probe the sensor */
sccb_reg_read(gspca_dev, 0 x0a);
sensor_id = sccb_reg_read(gspca_dev, 0 x0a) << 8 ;
sccb_reg_read(gspca_dev, 0 x0b);
sensor_id |= sccb_reg_read(gspca_dev, 0 x0b);
gspca_dbg(gspca_dev, D_PROBE, "Sensor ID: %04x\n" , sensor_id);
if ((sensor_id & 0 xfff0) == 0 x7670) {
sd->sensor = SENSOR_OV767x;
gspca_dev->cam.cam_mode = ov767x_mode;
gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
} else {
sd->sensor = SENSOR_OV772x;
gspca_dev->cam.bulk = 1 ;
gspca_dev->cam.bulk_size = 16384 ;
gspca_dev->cam.bulk_nurbs = 2 ;
gspca_dev->cam.mode_framerates = ov772x_framerates;
}
/* initialize */
reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
bridge_init[sd->sensor].len);
ov534_set_led(gspca_dev, 1 );
sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
sensor_init[sd->sensor].len);
sd_stopN(gspca_dev);
/* set_frame_rate(gspca_dev); */
return gspca_dev->usb_err;
}
static int sd_start(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int mode;
static const struct reg_array bridge_start[NSENSORS][4 ] = {
[SENSOR_OV767x] = {{bridge_start_qvga_767x,
ARRAY_SIZE(bridge_start_qvga_767x)},
{bridge_start_vga_767x,
ARRAY_SIZE(bridge_start_vga_767x)}},
[SENSOR_OV772x] = {{bridge_start_qvga_yuyv_772x,
ARRAY_SIZE(bridge_start_qvga_yuyv_772x)},
{bridge_start_vga_yuyv_772x,
ARRAY_SIZE(bridge_start_vga_yuyv_772x)},
{bridge_start_qvga_gbrg_772x,
ARRAY_SIZE(bridge_start_qvga_gbrg_772x)},
{bridge_start_vga_gbrg_772x,
ARRAY_SIZE(bridge_start_vga_gbrg_772x)} },
};
static const struct reg_array sensor_start[NSENSORS][4 ] = {
[SENSOR_OV767x] = {{sensor_start_qvga_767x,
ARRAY_SIZE(sensor_start_qvga_767x)},
{sensor_start_vga_767x,
ARRAY_SIZE(sensor_start_vga_767x)}},
[SENSOR_OV772x] = {{sensor_start_qvga_yuyv_772x,
ARRAY_SIZE(sensor_start_qvga_yuyv_772x)},
{sensor_start_vga_yuyv_772x,
ARRAY_SIZE(sensor_start_vga_yuyv_772x)},
{sensor_start_qvga_gbrg_772x,
ARRAY_SIZE(sensor_start_qvga_gbrg_772x)},
{sensor_start_vga_gbrg_772x,
ARRAY_SIZE(sensor_start_vga_gbrg_772x)} },
};
/* (from ms-win trace) */
if (sd->sensor == SENSOR_OV767x)
sccb_reg_write(gspca_dev, 0 x1e, 0 x04);
/* black sun enable ? */
mode = gspca_dev->curr_mode; /* 0: 320x240, 1: 640x480 */
reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val,
bridge_start[sd->sensor][mode].len);
sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val,
sensor_start[sd->sensor][mode].len);
set_frame_rate(gspca_dev);
if (sd->hue)
sethue(gspca_dev, v4l2_ctrl_g_ctrl(sd->hue));
setsaturation(gspca_dev, v4l2_ctrl_g_ctrl(sd->saturation));
if (sd->autogain)
setagc(gspca_dev, v4l2_ctrl_g_ctrl(sd->autogain));
setawb(gspca_dev, v4l2_ctrl_g_ctrl(sd->autowhitebalance));
setaec(gspca_dev, v4l2_ctrl_g_ctrl(sd->autoexposure));
if (sd->gain)
setgain(gspca_dev, v4l2_ctrl_g_ctrl(sd->gain));
setexposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure));
setbrightness(gspca_dev, v4l2_ctrl_g_ctrl(sd->brightness));
setcontrast(gspca_dev, v4l2_ctrl_g_ctrl(sd->contrast));
if (sd->sharpness)
setsharpness(gspca_dev, v4l2_ctrl_g_ctrl(sd->sharpness));
sethvflip(gspca_dev, v4l2_ctrl_g_ctrl(sd->hflip),
v4l2_ctrl_g_ctrl(sd->vflip));
setlightfreq(gspca_dev, v4l2_ctrl_g_ctrl(sd->plfreq));
ov534_set_led(gspca_dev, 1 );
ov534_reg_write(gspca_dev, 0 xe0, 0 x00);
return gspca_dev->usb_err;
}
static void sd_stopN(struct gspca_dev *gspca_dev)
{
ov534_reg_write(gspca_dev, 0 xe0, 0 x09);
ov534_set_led(gspca_dev, 0 );
}
/* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
#define UVC_STREAM_EOH (1 << 7 )
#define UVC_STREAM_ERR (1 << 6 )
#define UVC_STREAM_STI (1 << 5 )
#define UVC_STREAM_RES (1 << 4 )
#define UVC_STREAM_SCR (1 << 3 )
#define UVC_STREAM_PTS (1 << 2 )
#define UVC_STREAM_EOF (1 << 1 )
#define UVC_STREAM_FID (1 << 0 )
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
u8 *data, int len)
{
struct sd *sd = (struct sd *) gspca_dev;
__u32 this_pts;
u16 this_fid;
int remaining_len = len;
int payload_len;
payload_len = gspca_dev->cam.bulk ? 2048 : 2040 ;
do {
len = min(remaining_len, payload_len);
/* Payloads are prefixed with a UVC-style header. We
consider a frame to start when the FID toggles , or the PTS
changes . A frame ends when EOF is set , and we ' ve received
the correct number of bytes. */
/* Verify UVC header. Header length is always 12 */
if (data[0 ] != 12 || len < 12 ) {
gspca_dbg(gspca_dev, D_PACK, "bad header\n" );
goto discard;
}
/* Check errors */
if (data[1 ] & UVC_STREAM_ERR) {
gspca_dbg(gspca_dev, D_PACK, "payload error\n" );
goto discard;
}
/* Extract PTS and FID */
if (!(data[1 ] & UVC_STREAM_PTS)) {
gspca_dbg(gspca_dev, D_PACK, "PTS not present\n" );
goto discard;
}
this_pts = (data[5 ] << 24 ) | (data[4 ] << 16 )
| (data[3 ] << 8 ) | data[2 ];
this_fid = (data[1 ] & UVC_STREAM_FID) ? 1 : 0 ;
/* If PTS or FID has changed, start a new frame. */
if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
if (gspca_dev->last_packet_type == INTER_PACKET)
gspca_frame_add(gspca_dev, LAST_PACKET,
NULL, 0 );
sd->last_pts = this_pts;
sd->last_fid = this_fid;
gspca_frame_add(gspca_dev, FIRST_PACKET,
data + 12 , len - 12 );
/* If this packet is marked as EOF, end the frame */
} else if (data[1 ] & UVC_STREAM_EOF) {
sd->last_pts = 0 ;
if (gspca_dev->pixfmt.pixelformat != V4L2_PIX_FMT_JPEG
&& gspca_dev->image_len + len - 12 !=
gspca_dev->pixfmt.sizeimage) {
gspca_dbg(gspca_dev, D_PACK, "wrong sized frame\n" );
goto discard;
}
gspca_frame_add(gspca_dev, LAST_PACKET,
data + 12 , len - 12 );
} else {
/* Add the data from this payload */
gspca_frame_add(gspca_dev, INTER_PACKET,
data + 12 , len - 12 );
}
/* Done this payload */
goto scan_next;
discard:
/* Discard data until a new frame starts. */
gspca_dev->last_packet_type = DISCARD_PACKET;
scan_next:
remaining_len -= len;
data += len;
} while (remaining_len > 0 );
}
/* get stream parameters (framerate) */
static void sd_get_streamparm(struct gspca_dev *gspca_dev,
struct v4l2_streamparm *parm)
{
struct v4l2_captureparm *cp = &parm->parm.capture;
struct v4l2_fract *tpf = &cp->timeperframe;
struct sd *sd = (struct sd *) gspca_dev;
tpf->numerator = 1 ;
tpf->denominator = sd->frame_rate;
}
/* set stream parameters (framerate) */
static void sd_set_streamparm(struct gspca_dev *gspca_dev,
struct v4l2_streamparm *parm)
{
struct v4l2_captureparm *cp = &parm->parm.capture;
struct v4l2_fract *tpf = &cp->timeperframe;
struct sd *sd = (struct sd *) gspca_dev;
if (tpf->numerator == 0 || tpf->denominator == 0 )
sd->frame_rate = DEFAULT_FRAME_RATE;
else
sd->frame_rate = tpf->denominator / tpf->numerator;
if (gspca_dev->streaming)
set_frame_rate(gspca_dev);
/* Return the actual framerate */
tpf->numerator = 1 ;
tpf->denominator = sd->frame_rate;
}
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
.config = sd_config,
.init = sd_init,
.init_controls = sd_init_controls,
.start = sd_start,
.stopN = sd_stopN,
.pkt_scan = sd_pkt_scan,
.get_streamparm = sd_get_streamparm,
.set_streamparm = sd_set_streamparm,
};
/* -- module initialisation -- */
static const struct usb_device_id device_table[] = {
{USB_DEVICE(0 x1415, 0 x2000)},
{USB_DEVICE(0 x06f8, 0 x3002)},
{}
};
MODULE_DEVICE_TABLE(usb, device_table);
/* -- device connect -- */
static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
return gspca_dev_probe(intf, id, &sd_desc, sizeof (struct sd),
THIS_MODULE);
}
static struct usb_driver sd_driver = {
.name = MODULE_NAME,
.id_table = device_table,
.probe = sd_probe,
.disconnect = gspca_disconnect,
#ifdef CONFIG_PM
.suspend = gspca_suspend,
.resume = gspca_resume,
.reset_resume = gspca_resume,
#endif
};
module_usb_driver(sd_driver);
Messung V0.5 in Prozent C=92 H=95 G=93
¤ Die Informationen auf dieser Webseite wurden
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(vorverarbeitet am 2026-10-02)
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